man: describe precedence of drop-in .conf files over unit files

This commit is contained in:
Chris Atkinson 2015-12-17 22:41:59 -05:00
parent 3260929919
commit 0cf4c0d141
1 changed files with 12 additions and 0 deletions

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@ -191,6 +191,17 @@
<literal>.d/</literal> subdirectory and reads its
<literal>.conf</literal> files.</para>
<para>In addition to <filename>/etc/systemd/system</filename>,
the drop-in <literal>.conf</literal> files for system services
can be placed in <filename>/usr/lib/systemd/system</filename> or
<filename>/run/systemd/system</filename> directories. Drop-in
files in <filename>/etc</filename> take precedence over those in
<filename>/run</filename> which in turn take precedence over
those in <filename>/usr/lib</filename>. Drop-in files under any of
these directories take precedence over unit files wherever located.
(Of course, since <filename>/run</filename> is temporary and
<filename>/usr/lib</filename> is for vendors, it is unlikely
drop-ins should be used in either of those places.)</para>
<!-- Note that we do not document .include here, as we
consider it mostly obsolete, and want people to
use .d/ drop-ins instead. -->
@ -1402,6 +1413,7 @@ PrivateTmp=yes</programlisting>
cannot be reset to an empty list, so dependencies can only be
added in drop-ins. If you want to remove dependencies, you have
to override the entire unit.</para>
</example>
</refsect1>